Base | Representation |
---|---|
bin | 101111111001… |
… | …010011010011 |
3 | 212121212212121 |
4 | 233321103103 |
5 | 11203233400 |
6 | 1125035111 |
7 | 211501612 |
oct | 57712323 |
9 | 25555777 |
10 | 12555475 |
11 | 70a6129 |
12 | 4255a97 |
13 | 27a7a9a |
14 | 194b879 |
15 | 118021a |
hex | bf94d3 |
12555475 has 12 divisors (see below), whose sum is σ = 15664176. Its totient is φ = 9982880.
The previous prime is 12555467. The next prime is 12555479. The reversal of 12555475 is 57455521.
It is not a de Polignac number, because 12555475 - 23 = 12555467 is a prime.
It is a Duffinian number.
It is a plaindrome in base 9.
It is a self number, because there is not a number n which added to its sum of digits gives 12555475.
It is not an unprimeable number, because it can be changed into a prime (12555479) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2874 + ... + 5776.
It is an arithmetic number, because the mean of its divisors is an integer number (1305348).
Almost surely, 212555475 is an apocalyptic number.
12555475 is a deficient number, since it is larger than the sum of its proper divisors (3108701).
12555475 is a wasteful number, since it uses less digits than its factorization.
12555475 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3086 (or 3081 counting only the distinct ones).
The product of its digits is 35000, while the sum is 34.
The square root of 12555475 is about 3543.3705705162. The cubic root of 12555475 is about 232.4222578943.
The spelling of 12555475 in words is "twelve million, five hundred fifty-five thousand, four hundred seventy-five".
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